Brake mechanism for looms.



PATENT@ AUG. 4,11908.

P. H.TH0MPS0N. BRAKE MEGHANISM POR LOOMS. Arrnzouxon FILED oor 2z, 1901 'TATEs PATENT O l 'FRANK vn. THOMPSON, OF HOPEDALE, MASSACHUSETTS, ssIcNoR To Daarna COMPANY,

To all lwhom t 'may concern.' 'v

' Be it known that I, FRANK H. THOMPSON,

a citizen of the United States, and residentof Hopedale, county of Worcester, State of' Massachusetts, have invented an Improvement in Brake Mechanism for' Looms, vof' v shaft, and a pivotally mounted shoe to cooperate with the rotatable member, the means lto eieet the actuation of the brake mechanism operati G quickly and sharply, whether automatical y, due to a fault in tlie ope-ration of the loom, or when the shipper is released by hand. A connecting link is interposed between such means and thel shoe, the rear end of the link having a socket to receive a lug extended laterallyv from the shoe, and at times the sudden shock and 'strain due to the application Aof the brake mechanism will fracture the shoe or break off the lug.

The means to effect the actuation of the brake mechanism includes a frogwith which the link is connected, and hence such frog is stopped sharply and at a fixed point immediately upon the engagement of the rotating member and the brake shoe.

If the loom is equipped ith a so-called dead frog at the opposite side it can move forward a little ,further when the loom bangs off, as a rubber vcushion is interposed between the dead frog and the abutment on the loom frame, so that there is a slight inequality in the movement of the two frogs at the time of bang-o, tending to twist the lay.

In my present. invention I provide a slight y vielding or cushioning action betweenl t-lie link and the brake shoe, so that the severe shock and strain thereupon is elimina ted and when live and dead frogs are used the move ment thereof is equalized by the cushioning action so that there is no tendency to twist the lay, the movement at each end thereof being the same.

The novel features of my invention will be fully described in the subjoined specification l nnngnaivrncnamsm Fon Looms. v

Specification of Letters Patent..

OF HOPEDLE, MASSACHUSETTS, A CORPORATION OF MAIXE.

l rassure auge, 190s. 'f Application filed Octoberv22, 190'?. Serial No. 398,609.

and particularly pointed out in the following claims.

Figure 1 isa left hand side elevation of a sufficient portion of a loom, with my invention applied thereto; F ig. :lis a detail, partly in section, showing the yielding or cushioned connection between the brake shoe and the connecting or transniitt-tinglink.

The driving or crank-shaft 3, the lay As having the dagger (l of the protection .mechanism, to cooperate with the Eve frog F, the annular rotatable brake member 4 fast on the crankshaft, the cooperating shoe 5 pivotally mounted at 6 on the loom-side, the shipper 7 adapted to b'e released by hand or automatically by the faulty operation of the loom, and the Alink 8 havinga lost-motion connection with the frog and provided with a .lug 9, may be and are all of usual or Well known construction.

When the protection mechanism o crates the movement of the frog F actuantes t e link S to ci'ect the operation of the brake-mechanism, and through the rre'f'hted arm 10, pivoted at 11 and actuated irough release of the shipper, the link is moved to o crate the brake mechanism, all vin well manner, thc arm l0 having ak toe 12 to cooperate with the lug 9 on the link.

In accordance with my presentinvention the rear end of the link is screwed into the ownl shank 13 of a housing 14, sec Fig. 2, having an opening in its side to receive a lug 15 extended latcrally from the brake shoe 5, the housing being of sufficient length to receive a yielding or cushioning block. 16 of rubber, preferabl f interposed between the rear end 17 of the housing and the lug 15.

'"nen the link is moved in the direction of the arrow 25, it will be seen that the motion is transmitted to the lug l through the yielding member 16, so that undue shock strain upon the lug or the brake shoev is taken vup or absorbed, obviating the tendency to breakage when two metal parts come directly together with no opportunity for yielding. B v this viewing er cushioned'- the loom. l

When the loom is-previded with live and dead frogs the invention is of value, 4for when ico I the loombangs off and the cushioned dead l.

' the opposite end, where A the dead frog is located.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a loom, brake mechanism-comprising a 'rotatable brakemember and a shoe to coperate therewith, means to eiect -the actuation of theybrake mechanism, a link connected at one end with saidmeans, and

adjacent the shoe at its other end, a housing on oneof said parts, and a lateral lug on the other part entering the' housing, and a yielding member inserted in the housing between the lug and the end of the housing to take up shozk when the brake mechanism is oper- 2. In a loom, brake niechaiism including a rotatable member and a 'shoe movable toward and from it, actuating means for the brake mechanism, a link connected at one end with said means and having a housing at its other end, a lateral lug on the brake shoe, to enter the housing, and a cushionin'lY member inserted in the housing between time rear end thereof and the lug, to take up shock when the brake mechanism is actuated.

3. In a loom, brake mechanism including a rotatable member and a shoe to cooperate therewith, actuating means operative upon a. fault in the operation of the loom, a link connected at one end with the said means and having a housing at its other end, a lateral lug on the shoe, entering the housing and-a block of rubber inserted in the housing be-.

tween its rear end and the back of the lug, to be com ressed and thereby relieve the latter from shock when the brake mechanism is actuated.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

. FRANK I'I. THOMPSON.

Witnesses:

F RANK J. DUTCHER, J. L. REMINGTON, Jr. l 

